I'm planning to file for my delayed social security retirement benefits on Sept 2018. I will be 68.5 years old. Will I receive my first check in Oct 2018 for 21 months of delayed credits and then in Jan 2019 receive the full 30 months of delayed credits? My birthday is March 4th 1950. I initially wanted to delay credits until I was age 70 but am running out of money. Thanks for your advice.